.index-page {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;

    div {
        height: 200px;
        width: 400px;
        margin-top: 0 auto;

        h1 {
            color: red;
            font-size: 24px;
        }

        button {
            margin-top: 10px;
        }
    }

}